Store archive
A store archive file (.sar) is a ZIP archive file that contains all the assets necessary to create a store or site. It is primarily used as a vehicle for packaging and delivering stores. You only need to publish a store archive to the Server to create a functioning store or site that you can view, browse, and shop at.
Store archive files are also used to package and deliver organization structures, predefined user roles, and access control policies necessary to create the environment for your store or site, as well as to package collections of assets used to create a catalog or storefront.